Chemical analysis of 8 recently discovered extra-solar planet host stars

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dc.creatorSantos, N. C.
dc.creatorIsraelian, G.
dc.creatorMayor, M.
dc.date2000-09-12
dc.date.accessioned2026-07-07T01:55:25Z
dc.date.available2026-07-07T01:55:25Z
dc.descriptionWe present the chemical analysis of a new set of stars known to harbor low mass companions, namely HD 1237, HD 52265, HD 82943, HD 83443, HD 169830, and HD 202206. In addition, we have also analyzed HD 13445 and HD 7528}, already studied elsewhere. The abundances of C and alpha-elements O, S, Si, Ca and Ti are presented and discussed in the context of the metallicity distribution of the stars with extra-solar planets. We compare the metallicity distribution of stars with planets with the same distribution of field dwarfs. The results further confirm that stars with planets are over-abundant in [Fe/H].
dc.description12 pages, 9 figures, Accepted for publication in Astronomy and Astrophysics. to appear in Astronomy and Astrophysics
dc.identifierhttps://arxiv.org/abs/astro-ph/0009182
dc.identifierhttp://arxiv.org/abs/astro-ph/0009182
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/1649
dc.subjectAstrophysics
dc.titleChemical analysis of 8 recently discovered extra-solar planet host stars
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